Abstract: A constrained damping layer assembly includes a first constraining layer adapted for being secured to a first portion of an aircraft frame, and a second constraining layer adapted for being secured to a second portion of the aircraft frame. A damping material is sandwiched between the first constraining layer and the second constraining layer. The damping material includes a first side, which is adapted for slidably contacting the first constraining layer, and further includes a second side, which is adapted for slidably contacting the second constraining layer. The first constraining layer is adapted for sliding in a first direction upon introduction of a sheer load onto the interior panel, and the second constraining layer is adapted for sliding in a second direction upon introduction of a sheer load onto the interior panel.